Recommended High ScopeMount for Benjamin Prowler .22

Dont know if your particular rifle requires a special size rail or not, but over more than 30 yrs of airgunning I have always used "Sportsmatch" mounts. Never had an issue with them, never had a scope move with them, have used them on the harshest springers out there with no issues. Special forces used them for many years, that is how they got their start. If they make a mount to fit your rifle, you wont be sorry!!!!
 
Both of these have worked well for me on my rimfires. I like the one piece, clamps down and doesn't move.
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I used Hawke tactical 2 piece medium rings to mount a Hawke 4-16 x 44 mm compact scope on my HW95L which left about 1/8" clearance for the objective lens. I believe that medium rings would be better for your Benjamin Prowler. Hawke link. https://us.hawkeoptics.com/tactical-ring-mounts-30mm-2-piece-9-11mm-medium.html

His Prowler is an 18ish fpe gas piston gun compared to your 15ish fpe HW. I've owned both, still have the HW and while I use 2 piece rings on it, it doesn't recoil as hard as my Prowler did and the one piece mount while it will set the scope a bit higher would be a better bet for mounting his scope to that rifle with the harder recoil.